Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Stent structure
Patent
1987-06-01
1989-10-03
Cannon, Alan W.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
Stent structure
427 2, 128334R, A61F 206, A01N 102
Patent
active
048713619
ABSTRACT:
An artificial vessel, wherein the vessel wall is made of an elastomer having a porous structure with pores at any part of the vessel wall from the inner surface to the outer surface and consists of at least 2 concentric layers, each layer having a substantially uniform porosity percentage, the inmost layer having a thickness of from 30 to 500 .mu.m and a porosity percentage of from 95 to 80% and other layers having a lower porosity percentage than that of the inmost layer, and the porosity of the whole vessel wall is from 90 to 75%.
The artificial vessel may also be reinforced with tubular material made of fiber or with heat-set tubular material made of fiber.
The artificial vessel of the present invention has a porosity, a compliance approximate to that of a vital vessel, and a contact surface with blood having an excellent blood compatibility.
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Szycher et al., Synthetic Biomedical Polymers, Concepts and Applications, 1980, pp. 29-38.
Cannon Alan W.
Kanegafuchi Kagaku Kogyo & Kabushiki Kaisha
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